Automobile radiator



Oct- 20, 1925. 1,558,205

o. SIEFKEN AUTOMOBILE RADIATOR Filed April 5, 1924 Zlwuentoz 0170 Shy/ e71 Patented Oct. 2% i925,

UNITED STATES lstazas OTTO SIEFKEN, 013 ROCKFORD, IOWA.

AUTOMOBILE RADIATOR.

Application filed April 3,

T 0 all whom it may concern Be it known that I, OTTO SIEFKEN, a subject of Germany, residing at Rockford, in the county of Floyd and State of lowa, have invented certain new and useful improvements in Automobile Radiators, of which the following is a specification.

This invention appertains to an improved radiator for the cooling systems of automobiles and the primary object of the invention is to provide a novel radiator core or tube, which is so constructed as to provide a relatively large area of cooling surface, thereby insuring effective cooling of the water with a minimum amount of tubes.

A still further object of the invention is to provide novel radiator cores or tubes which are shaped to provide a maximum amount of cooling surface and for directing air outward of the sides of the engine hood, so as to protect the engine from dust and the like, the shape of the tubes also eliminating drafts under the foot board of the vehicle.

A still further object of the invention is to provide novel means for arranging the tubes relative to one another, whereby said tubes will give the maximum amount of eiliciency.

A, still further object of the invention is to provide an improved radiator for the cooling systems of automobiles of the above character, which will be durable and ellicient in use, one that will be simple and easy to manufacture, and one which can be placed upon the market at a small cost.

it/h these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings, in which drawings:

Figure 1 is a front elevation of the improved radiator,

Figure 2 is a fragmentary vertical section through the same, and

Figure is an enlarged fragmentary horizontal section through the same.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A generally indi- 1924. Eerial No. 704,062.

cates the improved radiator, which comprises the upper inlet water tank 5, the lower outlet water tank 6, and the novel con necting cores or tubes 'Z.

The tubes 7 are preferably substantially arrow shaped in cross section and each include the front angle shaped head 8 and the diverging arcuate side wings 9. The tubes 7 are arranged in staggered relation as clearly shown in Figure 3 of the drawings, in order to permit the air being drawn through the radiator to act with the maximum amount of efiiciency on all of the tubes.

It is also preferred to have the tubes with a slight taper at their upper ends as clearly shown in Figure 2 of the drawings, in order to prevent the tubes from being clogged up by the entrance of foreign particles into the same through the upper inlet tank 5.

Owing to the shape of the side wings 9 and the head 8, the air drawn through the radiator is divided and guided sideways through the automobile which tends to force the air outward through the sides of the radiator or engine cover. This blows all drafts away from the engine and effectively prevents the entrance of dust into the carbureter. Further by constructing the tubes as shown, a relatively large area of heat radiating surface is provided, which will permit the maximum amount of eiiiciency to be obtained from the tubes. It has also been found that the tubes constructed in accord ance with this invention are better able to withstand alternate freezing and thawing, which is so disastrous to radiators of the ordinary construction.

Changes in detail may be made without departing from the spirit or the scope of this invention, but what I claim as new is:

A radiator comprising an upper inlet. tank, a lower outlet tank, a plurality of tubes connecting the tanks together, each tube including a tapered leading end, and arcuate oppositely inclined wings, the tubes being arranged in staggered relation relative to one another, and gradually tapering toward their upper ends, as and for the purpose specified.

In testimony whereof I aflix my signature.

OTTO SIEFKEN. 

